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Mama L [17]
2 years ago
8

An electrician charges $40 per visit, and $20 per hour of work. On a particular day, he made 3 visits and calculated that his av

erage earnings were $50 per hour. Use this information to complete the statement. He worked hours that day.
Mathematics
1 answer:
saw5 [17]2 years ago
3 0

Answer:

  4 hours

Step-by-step explanation:

For three visits, the electrician earned $40 × 3 = $120 in "per-visit" charges. For working x hours, he earned 20x in "per-hour" charges. The total of these came to 50x:

  120 +20x = 50x

  120 = 30x . . . . . . . . subtract 20x

  4 = x . . . . . . . . . . . . . divide by 30

The electrician worked 4 hours that day.

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Show blocks as addends and the sum as a bigger block

Step-by-step explanation:

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3 years ago
a mint plant grows 7/8 in 1 week and 13/16 inch the next week. use a common denominator to write an equivalent fraction for each
MAVERICK [17]

Answer:

28/32 and 26/32

Step-by-step explanation:

A common denominator of 8 and 16 is 32.

7/8 = (7 * 4)/(8 * 4) = 28/32

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4 0
3 years ago
Zoey has 99 years .She plans to make 5 bangles .Each bangle is made using 30 beads how many more beads does zoey need?​
drek231 [11]

Note: I am assuming you meant to say:

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Answer:

Zoey needs 51 more beads to make 5 bangles.

Step-by-step explanation:

Total number of beads Zoey currently has = 99 beads

Beads need to make one bangel = 30 beads

so

Beads need to make 5 bangles = 30 × 5 = 150 beads

Since she has already 99 beads.

So, all we need s to subtract 99 beads from 150 beads.

Therefore,

The number of beads Zoey needs = 150 - 99

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Thus, Zoey needs 51 more beads to make 5 bangles.

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Answer:

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Step-by-step explanation:

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